Means and method for removing detachable mold sides



Nov. 19, 1929. E. BURKE 1,736,249

MEANS AND METHOD FOR REMOVING DETACHABLE MOLD SIDES Filed Sept. 2 1928 v 2 Sheets-Sheet l Mom:

E. BURKE 1,736,249

MEANS AND METHOD FOR REMOVING DETAGHABLE MOLD SIDES Nov. 19, 1929.

Filed Sept. 24, 1928 2 Sheets-Sheet 2 km mw Patented Nov. 19, 1929 were EDWIN BURKE, or MANILA, PHILIPIVINEC rsrinnns MEANS AND METHOD FOR REMOVING DETACH'ABLE IMEOLD SIDES Application filed September; 24, 1928. Serial No. 307,913.

The invention relates generally to the molding of plastic substances into large,-

blocks', and itv has specific relation to soap casting or molding.- Inmolding soap into large. blocks from-which. tolater form cakes, etc, it is customary to use soap frames or molds having separable walls; to permit re moval from the molded block, it being, the usual procedure to first remove the mold sides and then the ends but due to the greater area of the sides of the soap frames, great difficulty has been encountered in, removing. the mold'sides quickly andwithout impairing the faces of the block with which they 1 contact, due to sticking of said faces tosa dsides. While'this trouble has given rise to numerous efforts toward overcoming the difficulty,the trade to-day'lacks a practicable, and successful way of quickly and easily remov- 29 ing the mold sides without injuring. the molded block. It is therefore the aim; of myv invention to fulfill, this need.

Y'Vlfh the foregoing in view, the invention resides in the-novel subject matter hereinafter described and claimed,the description being supplemented by the accompanying drawings in which: 1 Fig. 1 is an end elevation partly broken away and in section showing one common form of soap frame or mold, illustrating the improved side remover inread-ine'ss for operation. I

Fig. 2 is a vertical longitudinal section substantially on line 2-2 of Fig.1.-

Fig. 3 is a view similar to Fig.- 1 but illustrating the manner in which the mold side is movedupwardly and outwardly from the molded block.

Fig. 4 is a top plan view.

Fig. 5 is a detail longitudinal section on line 5-5 of Fig. 4.

Fig. 6 is a detail transverse section on line 66of Fig. 5. u i 1 Figs. 7 and 8. are detail elevations partly in section showing different features of construction which may be used at, the lower ends of the pull rods hereinafter described.

Fig. 9 is a fragmentary side elevation illus- 59 trating the manner in which the pull rods v0 in theendsjofthe sides. S-,l.and in other may be connected'with the mold side in some instances. r u I r I Fig. 10 is a. side/ elevation showing still.

furtheri provision for. connecting the pull rods with the mold sides. M

A soap frame or mold M is shown mounted upon the usual truck 'l,said mold: embodying a bottom-B, ends E and sides S, together with 1118-3113 for clamping-these parts" in assembled relat on and for permitting separation of t'he eosides and ends fromeach other and from the bottom when the: mold is to be removed from the molded block of so.ap. In some,

instances, bolts are. passedthrougl-r openings constructions other means are provided for holding the mold sections assembled. Fhe outersides of the side walls of some forms off-molds are plain, while the corresponding sides. of other kinds of molds are provided, P with reinforcements, for instance, channelmetal reinforcements R 1 0:). These different characteristics of different molds are. merely mentioned in order that certain aspects; of the present invention may be more fully explained. In giving this explanation, specific reference will be made to the details, of construction selected for illustration inthe present application, but it is to be understood at the, outset that the invention is not. so restricted to this particular disclosure. 7

A barf12'; is provided to rest, slidably upon I the, mold ends E, said bar preferablycohsist ing ofav wooden corel3 and angle metal bars l'coveringthelsame, Transverse thrust bars G5 15 preferably of angular form intransverse section, are {riveted or otherwise secured to the lower side of the bars 12, these thrust bars being of a length for reception between the; upper portions of the mold sides S. I I i The ends-. of th .bar 12'are formed withv longitudinal slots 16 and pull rods 17 have their upper endspassedslidably through said slots. These, rods are adapted for disposition at theouter sides ofthemol-d ends E and they are provided at. their. lower ends with means for connectingtheinwith the lower portions 7 of the sides S. In a number of the views, hooks.1 8 are shown on the lower'ends of the rods 17 for engagement with certain of; the W9 openings or with projections 19 secured to the sides S. In other views, eyes 20 are shown 011 the lower ends of the pull rods 17. These I eyes may be passed over projections such as 19, or they may receivethe ends of a length of rod or pipe 21 passed longitudinally through one of the reinforces R, the latter being shown in Fig.10 Preferably, the hooks 18 or eyes I 20, as the case may be, are threaded into sock-1 ets such as '22 (Figs. 7, the lowerends of the rods 17. This permits interchange of hooks oreyes if advisable and also permits adamaged hook or eye to be removed and replaced with another. T

The upper portions of the rods 17 are threaded and upon them, nuts 23-are provided, each nut being preferably equipped with oppositely projecting'handgrips 2a. 'A washer 25 may well'be interposed between each nut 23and the bar 12.

The mold side remover comprising the parts 7 "12 17 23 15 1s or 20, etc.,- is applied to the mold as shown for instance in Figs. 1, 2,

' 3, 4 and 10. The bar 12 is-placed upon the ends E 'andthe lower ends of the rods'17 are connected with one of the sides S. The nuts 23 are then tightened and this not only causes upwardly sliding of the side S, but effects sliding of the bar 12 laterally so thatthe thrust bars 15 force the upper portion of the side 'S laterallyoutward as shown in Fig.

3. During tightening of the nuts 23, the

lengthsof rods 17 bet ween the lower ends of these rods'and the bar .12, are contracted and as such contraction takes place,the rods have a tendency to swing into a plane parellel with the side S, instead of remaining at an acute angle to this side. This tendency of the rods causes the bar 12 to slide upon the ends Band I mutilated as is common under the old practice. W

during this movement, the thrust bars 15 latj erally'force the upper end of the side S one wardly. By thus sliding thisside in an edgewise direction and simultaneouslymoving it v laterally outward, it is quickly'and easily separated from the molded block ofsoap and the latter is leftintact instead of being severely After removal offone'side S, the rods 17 are disconnected from this. side and co'nnected with the opposite "side," and the'same proce-T dure is then carried out with the latter. During'the removal of eitherside S, if the entire block of soap has a tendency to shift upwardly I withsaid side, this may be prevented;byplac'-" ing plates or blocks 26 under the bars 15 upon 7 the moldedblock. After removal of the mold sides, the ends maybe separated from the molded block by cutting with the usual wires or in any other manner. By providing the longitudinal s'lots'16 in the bar of member 12,

the pull rods may be adjusted toward or from each other to accommodate soap. frames or molds of different lengths.

'It' will be seen from theabove that not only have I produced a uniq e and advantageous 'wardly in a direction transverse mechanical contrivance for removing mold sides without injuring either them or the molded contents, but that my invention also involves the novel method of slidinga mold side in an edgewisedirection and outwardly forcing such side while it isbeing so slid. This sliding movement together with the simultaneous lateral thrust causes the ad- 7 hesion between the soap block and the side of the frame or mold to be quickly broken by comparatively few turns of the hand nuts 23 and whenonce' this adhesion is broken, the side of the soap'frame may be quickly removed. In actual practice, with this device, I have removed the sides of a soap frame'in less than one minute whereas under the old practice,'it frequently requires two men fifteen minutes ormore to remove one side of the frame. Pulling or forcing the sides in only a lateral direction as in the old practice frequently'results in both the soap block and the frame side being damaged and also-in a portion of the soap block adjacent the center'of the side adhering to the latter and pulling out of the remainder of the block since the center of the soap block is the last part of it to harden; 'This occurs frequent- 'ly when the soap hasnot been permitted to broken with no injury to either the soap block or the frameside.

I claim ll In a removing means for a detachable v mold'side; means for sliding said side edgewise, and means for moving said side outto its direction of sliding movement.

2'. Ina removing means for a detachable moldside; means for slidingv said side edge wise, and meansfor outwardly moving said side ina direction transverse to its direction 7 ofzsliding, both ofsaid means having comfmon actuating means. I

3. In a removing. means for a detachable mold side; ,a thrust member for disposition .on the moldto, thrust laterally outward upon said side, and longitudinally contractible v pulling means for disposition at an acute angle to said detachable side, said pulling means being connected with said thrust member and having means for connection with said detachable mold side to simultaneously slide said side edgewise and move said thrust memberto outwardly thrustsaid side.

4. In a removing means for a detachable mold side; a thrust member for slidable engagement with the mold in position to slide laterally outward and thrust against said detachable side, and longitudinally contractible pulling means connected with said thrust member and having means for connection with said detachable side, said pulling means being adapted for disposition at an acute angle to said side and at an acute angle to the line of movement of said thrust member, whereby upon contraction of said pulling means, edgewise sliding of said side and outward sliding of said thrust member to outwardly force said side will be effected.

5. In a removing means for a detachable mold side; a thrust member for disposition threaded on said rods and abutting said first named bar.

9. A method of removing a detachable mold side from mold contents which adhere to said side, comprising the steps of sliding the side in an edgewise direction and while so sliding on the mold to thrust laterally outward upon said side, said thrust member having an opening for inward spacing from the plane of said side, a pull rod passing slidably through said opening and adapted for disposition at an acute angle to said mold side, said pull rod having means for connection with said side, and a nut threaded on said rod and abutting said thrust member, tightening of said nut serving to slide said side and to move said thrust member to force said side laterally outward.

6. In a removing means for a detachable mold side; a thrust member for slidable engagement with the mold in position to slide laterally outward and thrust upon said detachable side, said thrust member having an opening, a pull rod passing slidably through said opening and adapted for disposition at an acute angle to said detachable side and at an acute angle to the direction of movement of said thrust member, said pull rod having means for connection with said side, and a nut threaded on said rod and abutting said thrust member, tightening of said nut serving to slide said side and to slide said thrust member to force laterally outward on said side. 7

7. In a removing means for a detachable mold side; a bar to rest slidably on the ends of the mold, transverse thrust bars secured to said bar to outwardly thrust upon said detachable side, and longitudinally contractible pull members connected to the ends of said bar and adapted for positioning at the outer sides of said ends of the mold, said pull members having means for connecting them to the detachable mold side in acute angular relation with the latter.

8. In a removing means for a detachable mold side; a bar to rest slidably on the ends of the mold, the ends of said bar having openings, transverse thrust bars secured to the first named bar to outwardly thrust upon said detachable side, pull rods passing slidably through said openings and adapted for disposition at the outer sides of said ends of the mold, said rods having means for connecting them with said mold side, and nuts 

